NEW YORK — Actresses Natalie Portman and Kristen Stewart are Hollywood's most bankable stars and provide studios with the highest average returns for their films, according to Forbes.com. Academy award winner Portman topped the list of best actors for the buck, providing about $42.70 for every dollar she earns. “We estimate that for every dollar Portman is paid by the studios, she returns $42.70,” Forbes.com said. “Twilight” star Stewart was not far behind, bringing in $40.60. She also topped the Forbes list of highest-earning actresses with an estimated $34.5 million in salary in 2012. — Reuters
